Not a teardrop but I have 3 small bridges that were built to span a small dry stream (dry in summer). I coated those with 2 coats of TBII, all sides and then put a layer of grey house paint over that. Again, all sides. One has been outside in use for 5 years and is still doing pretty good. The other two were new last fall and are painted cedar but have weathered the more-than-normal amount of rain well. So good so far. Would I do that with a teardrop? Maybe not. However, last spring, I filled a stress/age crack with TBII and then followed up with marine paint on my trailer and that's holding okay but it was not in a place where I was worried about leaks as it was on an exterior board.
PS. I forgot to mention that I watered down the TBII slightly so that it would be easier to paint on. Adding just a little water to the mix seems to help the TB sink into the wood better. When I was using it as a glue, I always ran a damp sponge over the wood before applying the glue.
